Moroff believed there was money to be made for a heavy gunner but did not personally care about the conflict between the Rebellion and the Empire.[1]

He was usually grumpy, and whenever he was asked to do something, he did it begrudgingly. However, his rude replies in his native language were always translated by his vocoder to be pleasant and cheerful in Galactic Basic.[2]

The character that became Moroff was originally named Senna.[5] Senna was one of several characters conceived to be a part of the Rogue One team seen in the film, alongside Lunak, Dray Nevis, Ria Talla and Jerris Kestal. He was intended to be a duo with the character of Lunak and these two characters ultimately influenced the duo of Baze Malbus and Chirrut Îmwe. Senna's character underwent several designs, including a large somewhat-reptilian appearing character, an elf-like character with a blaster rifle and a character with a somewhat wolfish appearance, and finally the Gigoran that was ultimately renamed Moroff and given a much smaller role in the movie[5]. The character, however, was consistently drawn as an alien male. Art for Senna/Moroff was created by Christian Alzmann and Karl Lindberg, concept artists on Rogue One.[6]

While some pre-release footage from Rogue One shows Moroff participating in the Battle of Scarif, he is not seen in any Scarif scenes in the final movie.[7]